AUTONET TV

Not Too Hot and Not Too Cold (Temperature Gauge)

You know your body temperature is supposed to be 98.6 degrees F, 37 degrees C.  Your vehicle has a normal temperature, too, and if you pay attention to it, that can save you some big headaches down the road.

Many vehicles have a temperature gauge on the dash that takes the temperature of the engine's coolant.  Some have a thermometer symbol, some read C-H (cold to hot). Many will have a red zone that shows when water temperature is getting into the danger zone.  Others are digital and have a red warning light that signals overheating.  And some vehicles have a light that goes on when the engine temperature is out of the normal range.

If your vehicle has a gauge, pay attention to it.  If you need help locating it, ask one of our McPherson Automotive experts to give you a quick explanation.  Chances are when the vehicle has been running for 15 minutes or more, the temperature gauge will settle into its own "normal" zone, often just below the midway point.  If you have a digital readout, remember what that "normal" temperature is.  Here's why.

At any point when you're driving, the temperature gauge is the quickest way to get a sense that the engine is running the way it should, a quick health checkup, as it were. Say you're on a 3-hour trip, glance at that gauge every hour or so.  It should always be in the same spot.  If it starts to move one way or the other, you may be able to catch a problem before it gets serious.

Pay special attention to it moving into the hot zone.  The needle on the gauge is the easiest and least distracting way to see an engine heating up, but on a digital gauge, start paying attention if the temperature reaches 240ºF/115ºC or more.

Remember, though, that just because the gauge reads "hot" doesn't mean your engine is on the verge of burning up.  It could be a bad sensor and the engine will be at a normal temperature.  But it also could be a failing water pump, coolant leak or thermostat.  By pulling off the road and observing your engine, it will give you a pretty good idea if it's running hot or not.

If the gauge is too "cold," it could be a broken gauge or thermostat sticking open.  Usually being in the cold range isn't as worrisome, but you should have it checked out since other systems may be affected.

Heat is one of a vehicle's worst enemies, especially when it comes from within.  Know your vehicle's normal temperature and keep an eye on it.

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net

Keeping Your Engine Cool in Du Quoin, IL

The cooling system keeps IL vehicle's engines from overheating while they are driving around Du Quoin. Its job is to move heat away from the engine. Let's talk about the various components of the system and how they make this happen.

The radiator is the part most Du Quoin drivers associate with the cooling system. Coolant flows through the radiator which has fine cooling fins that draw the heat out of the coolant and dissipate it into the air. To make sure there's enough airflow over the radiator, a fan pulls air over the cooling fins even when the vehicle is idling.

In some vehicles, the fan is powered by the serpentine belt. On others, an electric motor runs the fan. Electric fans turn on and off as needed. You may have heard the fan kick on shortly after you turn your vehicle off. The sensor has determined that the engine needs a little help cooling down to a safe temperature.

A hose connects the radiator to the water pump. The water pump pushes the water into the vehicle engine block. Now the engine block and cylinder heads have passages for the coolant to pass through without getting into the oil or the combustion chamber. In the automotive community, these passages are referred to as the "water jacket."

While the coolant is passing through the water jacket, it absorbs heat from the vehicle engine on its way to the radiator for cooling. Between the engine and the radiator is a gatekeeper called the thermostat. The thermostat's job is to regulate the temperature of the engine just like your home thermostat regulates the temperature in your house. It gets your engine up to the correct operating temperature and then keeps it from overheating.

When you first start the engine, it's very cold and needs to warm up. So the thermostat blocks the flow of coolant to the radiator. As the engine warms up, the thermostat starts to let coolant flow through the system.

The final component the team at McPherson Automotive wants to point out is the overflow reservoir. This bottle is designed to hold some of the coolant. It'll have a mark that indicates whether or not you have enough coolant. This is where you should add coolant if you just need to top it off.

Caution: never open the reservoir or the radiator cap when the car's hot. The cooling system is pressurized, and opening those caps while it's hot can cause hot coolant and steam to escape resulting in serious burns.

Cooling system failure is the most common mechanical failure in vehicles around Du Quoin, IL. At McPherson Automotive, we can do a periodic inspection of the components for  leaks, loose connections and weakening hoses.

Your vehicle manufacturer has also specified a cooling system service interval. With a cooling system service at McPherson Automotive in Du Quoin, the old coolant is replaced with correct clean fluid that contains the additives required to prevent corrosion. The additives are depleted over time and you need fresh fluid for adequate protection. Your radiator pressure cap should be replaced at this service as well.

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net

Go Straight: Wheel Alignment for Du Quoin Automobiles

Du Quoin drivers may have an alignment problem if their car drifts or pulls to one side, the steering wheel's off center, they notice uneven tire wear or the car doesn't feel like it handles right as they drive down Du Quoin, IL, streets and roads.

When all of a vehicle's wheels are lined up exactly with each other, your wheels are in alignment. Running into potholes, smacking a curb or other objects around Du Quoin are great ways to knock a car out of alignment. Then one or more of your wheels start pulling in a slightly different direction and the problems begin.

The team at McPherson Automotive in Du Quoin wants you to know that driving for an extended time when your car is out of alignment causes your tires to wear unevenly and excessively. Sometimes the tire can be worn so badly that it will fail.

At the very least, those who drive with wheels out of alignment will have to replace their tires sooner. You could end up with premature wear to your suspension system, which can be expensive. The front wheel alignment is adjustable on all vehicles, and the back wheels are also adjustable on some cars.

Now, let's discuss some alignment basics. Wheels are adjustable for toe, caster and camber. The ideal alignment for your car was designed by its engineers.

So, what is involved in an alignment check at McPherson Automotive in Du Quoin? First, there's an inspection of the steering and suspension to see if anything is bent or broken. Tire condition will also be evaluated.  Next, the vehicle is put on an alignment rack and we take an initial alignment reading.

If all four wheels are adjustable, they are lined up perfectly parallel with the vehicle's centerline. If the back wheels aren't adjustable, the direction they push is determined and the front wheels are aligned to match.

Like most things, vehicle manufacturers have recommended a mileage interval for having alignment checked. But if you run into a curb, pothole or something else that's given you a big jolt, pay attention to whether your vehicle is pulling to one side when you drive around the Du Quoin area. It's better for vehicle owners to have their alignment checked before waiting to see if there is uneven tire tread wear; by then, the damage is done.

Getting your alignment checked at McPherson Automotive when necessary is a great way to extend the life of your tires and suspension parts. It also makes sure that your tire meets the road properly for maximum performance and safety in IL.

Come see us at  for more information about your tire alignment. We look forward to serving you.

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net

Breathe New Life into Your Engine (MAF sensor replacement)

If you’ve noticed your vehicle is hard to start, stalling, or has lost power, the culprit may be a part with an odd name: the MAF sensor.  You may have never even heard of a MAF sensor, but it’s important that it be working correctly, or you may be experiencing some fairly significant engine issues.

All vehicles bring in air and direct it through an air filter before it goes into your engine, where it mixes with fuel to provide power to get you going. There’s a tube-like device with a sensor inside it that measures how much of that mass of air is passing through. That’s why it’s called a mass air flow sensor, or MAF sensor.  If the MAF sensor isn’t working right, the engine’s computer can’t figure out the right amount of fuel to mix with it, and your engine may hesitate or stall.  Sometimes this will cause your Check Engine Light to come on, and any time it does that, make sure you have your vehicle checked by a professional, so you’ll know what’s going on.

When you take your vehicle into your service facility, a technician will thoroughly check the system to see just where the problems are.  If your air filter is dirty, your MAF sensor may get dirty too, which might be causing the problems.  You may find your fuel economy isn’t what it used to be either.

There are other things that can cause the same symptoms, too, such as a leak in a vacuum hose. It’s also possible that the electrical connector between the MAF sensor and the engine has broken. 

The technician can use electronic diagnostic equipment to help pinpoint the exact problem or problems, replace worn parts, and test drive your vehicle to make sure it’s working correctly.

It’s also a good idea to make sure your air filter is changed regularly. A dirty air filter can contribute to a MAF sensor failure. One of the big benefits of having your vehicle regularly maintained at one facility, is they know your vehicle. So, they keep track of which of your vehicle’s parts should be periodically replaced before problems develop. 

If you keep clean air heading into your engine, it can help your engine work efficiently, and with the power it was engineered to deliver. Isn’t that a breath of fresh air?

McPherson Automotive
1 E Park St
Du Quoin, IL 62832
(618) 542-9203
http://www.mcphersonautomotive.net